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/*
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#ifndef ANDROID_HARDWARE_CAMERA_HARDWARE_STUB_H
#define ANDROID_HARDWARE_CAMERA_HARDWARE_STUB_H
#include "FakeCamera.h"
#include <utils/threads.h>
#include <ui/CameraHardwareInterface.h>
#include <binder/MemoryBase.h>
#include <binder/MemoryHeapBase.h>
#include <utils/threads.h>
namespace android {
class CameraHardwareStub : public CameraHardwareInterface {
public:
virtual sp<IMemoryHeap> getPreviewHeap() const;
virtual sp<IMemoryHeap> getRawHeap() const;
virtual status_t startPreview(preview_callback cb, void* user);
virtual void stopPreview();
virtual bool previewEnabled();
virtual status_t startRecording(recording_callback cb, void* user);
virtual void stopRecording();
virtual bool recordingEnabled();
virtual void releaseRecordingFrame(const sp<IMemory>& mem);
virtual status_t autoFocus(autofocus_callback, void *user);
virtual status_t takePicture(shutter_callback,
raw_callback,
jpeg_callback,
void* user);
virtual status_t cancelPicture(bool cancel_shutter,
bool cancel_raw,
bool cancel_jpeg);
virtual status_t dump(int fd, const Vector<String16>& args) const;
virtual status_t setParameters(const CameraParameters& params);
virtual CameraParameters getParameters() const;
virtual void release();
static sp<CameraHardwareInterface> createInstance();
private:
CameraHardwareStub();
virtual ~CameraHardwareStub();
static wp<CameraHardwareInterface> singleton;
static const int kBufferCount = 4;
class PreviewThread : public Thread {
CameraHardwareStub* mHardware;
public:
PreviewThread(CameraHardwareStub* hw) :
#ifdef SINGLE_PROCESS
// In single process mode this thread needs to be a java thread,
// since we won't be calling through the binder.
Thread(true),
#else
Thread(false),
#endif
mHardware(hw) { }
virtual void onFirstRef() {
run("CameraPreviewThread", PRIORITY_URGENT_DISPLAY);
}
virtual bool threadLoop() {
mHardware->previewThread();
// loop until we need to quit
return true;
}
};
void initDefaultParameters();
void initHeapLocked();
int previewThread();
static int beginAutoFocusThread(void *cookie);
int autoFocusThread();
static int beginPictureThread(void *cookie);
int pictureThread();
mutable Mutex mLock;
CameraParameters mParameters;
sp<MemoryHeapBase> mPreviewHeap;
sp<MemoryHeapBase> mRawHeap;
sp<MemoryBase> mBuffers[kBufferCount];
FakeCamera *mFakeCamera;
bool mPreviewRunning;
int mPreviewFrameSize;
shutter_callback mShutterCallback;
raw_callback mRawPictureCallback;
jpeg_callback mJpegPictureCallback;
void *mPictureCallbackCookie;
// protected by mLock
sp<PreviewThread> mPreviewThread;
preview_callback mPreviewCallback;
void *mPreviewCallbackCookie;
autofocus_callback mAutoFocusCallback;
void *mAutoFocusCallbackCookie;
// only used from PreviewThread
int mCurrentPreviewFrame;
};
}; // namespace android
#endif
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